3875 papers
Quantum gravity represents the frontier where the very large meets the very small, attempting to unify Einstein's theory of gravity with the strange rules of quantum mechanics. This field explores the fundamental fabric of spacetime, seeking to understand how the universe behaves at its most extreme scales, from the heart of black holes to the moment of the Big Bang. Because these concepts often involve complex mathematics, they can feel distant to non-specialists, yet they hold the key to a complete picture of physical reality.
At Gist.Science, we bridge this gap by processing every new preprint in this category directly from arXiv. Our team provides both plain-language explanations and detailed technical summaries for each paper, ensuring that groundbreaking research is accessible to everyone, from curious students to seasoned researchers. Below are the latest papers in quantum gravity, offering fresh insights into the nature of our cosmos.
This paper forecasts that the angular cross-correlation of next-generation gravitational-wave catalogs with the Euclid galaxy survey can constrain the Hubble constant to percent-level precision and significantly improve cosmological constraints, provided multiple interferometers enable precise sky localization.
This paper establishes the local-in-time well-posedness of the initial-boundary value problem for vacuum Einstein equations with Dirichlet boundary data, contingent on the Brown-York stress tensor satisfying a convexity-type condition that ensures it shares the same Lorentzian signature as the induced boundary metric.
This paper establishes the local-in-time well-posedness of the initial-boundary value problem for the vacuum Einstein equations under twisted Dirichlet boundary conditions, which specify the pointwise conformal class of the boundary metric and a scalar density derived from the bulk and boundary volume forms.
The paper proposes a novel operator algebraic framework called "Poissonization" to describe the rare topology-changing events in quantum gravity as a universal Poisson process, thereby explaining late-time spectral form factor plateaus and unifying the description of baby universe statistics and multi-boundary correlators across various models like Marolf-Maxfield and Jackiw-Teitelboim gravity.
This paper demonstrates that polar perturbations inside a Schwarzschild black hole possess bound states, where of them are isospectral to axial perturbations while the remaining algebraically special mode serves as the ground state, collectively yielding an equally spaced spectrum that implies black hole area quantization of .
This paper demonstrates that applying a "kinetic driving" Floquet engineering technique to the Hubbard model, specifically the Bose-Hubbard model, effectively suppresses single-particle processes to generate quasi-random all-to-all interactions, thereby enabling a practical cold-atom quantum simulation of Sachdev-Ye-Kitaev (SYK) physics.
This paper introduces a novel shell-based effective field theory that leverages known black hole perturbation solutions to bypass higher-order calculation hurdles, enabling the derivation of scalar Love numbers up to and revealing a conjectured all-order structure involving the Riemann zeta function.
This paper investigates the thermodynamic phase transitions and quantum entropy corrections of the Simpson-Visser regular black hole, demonstrating that singularity resolution induces critical instabilities and alters the evaporation end-state through a discontinuous heat capacity and leading-order quantum effects.
This paper argues that single-field inflationary models generating primordial black holes are not technically unnatural when fine-tuning is quantified using the modified Wilson's naturalness criterion, which corrects the counterintuitive results of standard definitions.
This paper demonstrates that by employing a collision kernel conserving energy-momentum and particle current, the poles of the relativistic kinetic equation yield a dispersion relation with a systematic gradient structure where spatial and temporal gradients appear in unison, thereby ensuring causality in truncated hydrodynamic theories.